US Bridges

NW Mill CR DR over W Sheep CR

FairPosted for load

Caldwell County, Missouri · S 23 T 57 N R 29 W · Structure no. 13030

Built
1993
32 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
39 ft
1 main span
Daily traffic
30
2024 count
Owner
County
County Highway Agency

About this bridge

NW Mill CR DR over W Sheep CR is a steel stringer/multi-beam or girder carrying NW Mill CR DR over W Sheep CR in Caldwell County, Missouri. It was built in 1993, so it is 32 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 30 vehicles a day, roughly 10% of them trucks, projected to reach 35 by 2044. The structure is 39 ft (11.9 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesNW Mill CR DR
CrossesW Sheep CR
LocationS 23 T 57 N R 29 W
RouteCounty Highway 27
CountyCaldwell County
StateMissouri
Coordinates39.72821, -94.12132
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating14.9 US tons
Inventory rating9.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span39 ft (11.9 m)
Deck width16 ft (5 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2024)
Projected traffic35 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$344,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was NW Mill CR DR over W Sheep CR built?

It was built in 1993, making it 32 years old in 2025.

What condition is NW Mill CR DR over W Sheep CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does NW Mill CR DR over W Sheep CR carry?

About 30 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is NW Mill CR DR over W Sheep CR?

The structure is 39 ft (11.9 m) long with a longest span of 39 ft (11.9 m) and a deck 16 ft wide.

Who owns NW Mill CR DR over W Sheep CR?

It is owned by the County Highway Agency.